Finding the Fourth Proportional to 31,076.51, 42,890.06 and 17,649

Step by Step Solution

1. Step 1: Write the proportion equation
   31,076.51 : 42,890.06 = 17,649 : x
2. Step 2: Convert to fraction form
   31,076.51/42,890.06 = 17,649/x
3. Step 3: Cross multiply
   31,076.51x = 42,890.06 × 17,649
4. Step 4: Simplify right side
   31,076.51x = 756,966,580.70
5. Step 5: Solve for x
   x = 756,966,580.70/31,076.51
6. Step 6: Final answer
   x = 24,358.16